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Experiencewith IEC 61850based Systems

Klaus-Peter Brand

April 2006

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Content

IEC 61850Experience with Systems

IEC61850Experience

� First experiences� Experience – Case studies� Experience – Projects� Summary

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ABB's first experiences

� Driving force in standardization committees� 13 permanent members in TC57

� Testing with Areva and Siemens since 2001� Last tests concluded Q2 2004

� IEC61850 References � First IEC61850 installations in

service since 12/2004

� Many stations in execution

Part 6Substation Configuration Language (SCL)

Communication model Parts 7-1 to 7-4

Communication requirements Part 5

System and Project management Part 4

Glossary Part 2

Introduction and overview Part 1

General requirements Part 3

Part 10Conformance testing

Part 9Part 9-1

Part 9-2

Part 8-1 : Mapping for MMS-TCP/IP-Ethernet

Part 8-x : for Future Use

100 Mbit/s redundant switched Ethernet ring

Bay Level

Station Level/ Gateway

IEC101

GPS

Kema Simulator

KemaAnalyser

IEC61850Experience

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Summary of the first experiences

� From the Development of the Standard� Very high effort needed to combine the expertise of many participants to a

global standard in 10 years

� Global (for IEC and ANSI world) standard ready and usable

� Unexpected diffusion of the standard in other domains

� From the early Testing� Early testing of systems combined by device from ABB, Siemens, Areva and

Omicron has resulted in important feedback for the standard and the participating companies

� Early testing has avoided a standard which is not usable at all

� From the first project� The standard request some learning for all (customer, supplier)

� IEC 61850 is very well suited for complex retrofit projects also

� SCL and system tools are the key for system integration

IEC61850Experience

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ABB's Strategy for quality assurance

� Technologies like IEC61850 affect many aspects of systems components and system integration� New or updated control and protection products

� Adapted product and system engineering tools and processes

� New communication infrastructure and topologies

� Thorough System Verification is key Product System Test System Verification & Validation

Stand-alone product tests Single Product Verification in a small system

System integration Test in large System

Product Unit Tests

IEC61850Experience

General ExperienceQuality assurance by testing from Products up to Large Systems is essential

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ABB’s experience – Case Studies

Project Characteristics

� EGL – Laufenburg 380kV Substation Retrofit� Bay-by-bay retrofit of Primary and Secondary Systems

� IEC 61850 required

� Search for an “Utility Standard” 380kV� Standard Solution development for large retrofit and extension program

� Retrofit of entire stations, Greenfield stations

� IEC 61850 required

� DEWA – Frame Contract 132/11 kV Substations� Frame Contract for 20 (up to 40) new stations

� Large number of systems to be delivered within short time

� IEC 61850 required

ExperienceCase studies

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EGL – Laufenburg 380kV Substation Retrofit

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Project Description

� Interruption-free retrofit: Feeder by feeder

� IEC61850: Extension of existing Specification

� M1/M2 from different vendors required

� Integration with existing 3rd

party Station HMI

ExperienceCase studies

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Search for an „Utility Standard“ 380kV

Project Description

� Base for multi-year retrofit program

� Detailed specification for functional units and IEC61850

� Homologation of functional units required

� M1/M2 from different vendors required

ExperienceCase studies

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DEWA – Frame Contr. 132/11 kV Substations

Project Description

� Frame contract for 20 SA systems

� Identical station layouts

� Step-wise introduction of IEC61850

� Rigorous pre-qualification including site visits

� Short order-to-commissioning time

ExperienceCase studies

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ABB’s IEC 61850-compliant solutions Experience

Projects

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MEW 220kV Transmission Development, Bahrain

Requirements:� Double Busbar arrangement

� Bay Controllers on IEC61850

� High availability, no single point of failure

� Fully redundant LAN network on 220kV

� Free LAN port for laptop computer at each bay

Solution:� Small sized Ethernet switch for each bay unit.

ExperienceProjects

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ExperienceProjects MEW 220kV Transmission Development, Bahrain

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� Independent managed Ethernet Switch from RuggedCom with IEC61850 configured in the redundant Substation Ring, de-central installed

� Single connection of IED and Ethernet switch within a panel, is provides as a fully redundant system, if switches are interconnected by a redundant ring

� Interoperability is still guaranteed� Separation between switch and IED makes less

problems like integrated switches� A faulty IED does not automatically open the

Ethernet ring� Interoperability is still guaranteed� Open to choose a switch supplier, open to

upgrade ring speed (e.g. 1GB)� Spare connectors can be used to interrogate the

system or even to connect a laptop computer with SAS X-terminal functionality

ExperienceProjects MEW 220kV Transmission Development, Bahrain

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ExperienceIEC 61850 Summary

IEC 61850 is well proven in substation automation systems andit is working as intended

There is some learning needed both by users/customers and providers/manufacturers to avoid misunderstandings

Clear functional requirements but flexibility in the implementationmay be of benefits for the users/customers

The role of the system integrator has to be defined clearly

The “limits” of the standard IEC 61850 have to be respectedto maintain interoperability and allow maintenance i.e.a standard modified by utilities is no standard anymoreand has to be rejected